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다중 임계 기법과 영역확장법을 이용한 뇌졸중 병변 정합 방법 연구
탁윤오,김태윤,황해길,김동억,최흥국 인제대학교 2009 仁濟論叢 Vol.24 No.1
In clinical studies of brain stroke, it generally involves the process that spatially normalizes MR images into the standard brain template in order to find out distributions of lesion. So far MNI305, which is people’s standard brain template, has been commonly used. However in this study, to reduce some morphological differences caused by human races, ages, and sexes, we used the Korean Statistical Probabilistic Anatomical Map(Korean-SPAM). As a preprocessing methods, brightness and position of a brain had been adjusted at the first Then, stroke lesions were segmented using multiple threshold and region growing methods. Finally, stroke lesions were registered to the Korean-SPAM using Mesh Warp algorithm. We can registered various stroke MR brain images to Korean-SPAM rightly by the proposed method.
세포브러쉬와 면봉도말법에 의한 부인과 세포학적 검사의 효율비교
김정란,김성숙,배한익,김용탁,심재철,임문환,윤혜원,이상식 동국대학교 경주대학 1993 東國論集 Vol.12 No.-
A study was undertaken to evaluate the efficiency of the sytobrush compared with the cotton swab for obtaining cells from the uterine cervix. In 300 patients, the cytobrush technique was employed and in control 300 patients was smeared by the cotton swab. In 12 out of 300 patients(4%) endocervical cells were found on the cotton swab technique. A total of 252 out of 300 cytobrush sampler specimen(84%) contained endocervical cells. With the X²method for statistical comparison, the difference in endocervical cell yield between the cotton swab and the cytobrush sampler was significantly different(p<0.01). This was particularly true in older patients. We conclude from study that the cytobrush sampler is of value for obtaining as adequate cervical cytologic specimen.
오연희,이현경,이원재,이성우,박수성,윤혜원,임문환,심재철,김용탁,김성숙,김정란 동국대학교 경주대학 1993 東國論集 Vol.12 No.-
Acute torsion of the ovary and ovarian mass is a recognized surgical emergency, but rarely has the diagnosis been made preoperatively on the basis of imaging studies. The sonographic findings in 14 cases of surgically proven torsion of the ovary and ovarian mass are described. Mostly cystic ovarian mass, engorged vessel, dilated uterine tube, beak-like echo(torsion site), smooth mass wall thickening an free-fluid collection in cul-de-sac are described. More significant in terms of specificity were the demonstration in 6 cases(42.9%) of the smooth mass wall thickening and in 8 cases(57.1%) of a free fluid in the cul-de-sac. We report the sonographic findings of ovary and ovarian mass torsion that may suggest the preoperative diagnosis of this condition.
Yoon, Chang-Yun,Noh, Juhwan,Jhee, Jong Hyun,Chang, Tae Ik,Kang, Ea Wha,Kee, Youn Kyung,Kim, Hyoungnae,Park, Seohyun,Yun, Hae-Ryong,Jung, Su-Young,Oh, Hyung Jung,Park, Jung Tak,Han, Seung Hyeok,Kang, S American Heart Association, Inc. 2017 Stroke Vol.48 No.9
<P>Conclusions-Our findings suggest that warfarin should be used carefully in hemodialysis patients, given the higher risk of hemorrhagic events and the lack of ability to prevent thromboembolic complications.</P>
Yoon, Chang-Yun,Park, Jung Tak,Jhee, Jong Hyun,Noh, Juhwan,Kee, Youn Kyung,Seo, Changhwan,Lee, Misol,Cha, Min-Uk,Kim, Hyoungnae,Park, Seohyun,Yun, Hae-Ryong,Jung, Su-Young,Han, Seung Hyeok,Yoo, Tae-Hy American Society for Clinical Nutrition 2017 The American journal of clinical nutrition Vol.106 No.1
<P>Conclusions: High dietary phosphorus density is associated with an increased risk of CKD development in DM patients with normal renal function. The causality in this association needs to be tested in a randomized controlled trial.</P>
뇌졸중 병변 정량화를 위한 뇌 자기공명영상의 전처리 및 정합 방법 연구
탁윤오(Yoon-Oh Tak),김태윤(Tae-Yun Kim),황해길(Hae-Gil Hwang),최흥국(Heung-Kook Choi),김동억(Dong-Eog Kim) 한국멀티미디어학회 2008 한국멀티미디어학회 학술발표논문집 Vol.2008 No.2
본 논문에서는 뇌졸중 뇌자기공명영상에서 병변을 분리해내고 그 병변을 한국인의 확률뇌지도에 사상시킴으로써 뇌졸중 영상에 대한 통계적, 정량적언 분석이 가능하도록 하는 정합 방법을 소개하려고 한다. 첫 번째 단계로써 각기 다른 밝기를 가지는 영상의 밝기를 정규화하고 두 번째는 영역확장법과 다중 임계기법을 이용한 병변 선택, 그리고 세 번째는 지정된 기준점을 중심으로 이중선형보간법과 어파인 변환을 수행하여 최종적으로 병변이 확률뇌지도 위에 사상되도록 하였다. 다양한 유형의 영상 데이터에 적용하여 테스트한 결과, 뇌 병변의 정량적 분석을 위한 초기 데이터 처리를 쉽고 빠르게 수행할 수 있었다.
정해관,이민석,이현경,임문환,김용탁,이성우,임현술,황선보,오연희,배철성,심재철,김승현,도은형,윤혜원 東國大學校醫學硏究所 1995 東國醫學 Vol.3 No.-
동국대학교 의료원 산부인과에서는 1991년 10월 1일부터 1994년 12월 31일까지 약 39개월동안 자궁외 임신으로 진단된 79명의 환자에게 골반경 수술을 시행하였다. 골반경수술은 수술후 입원기간의 단축, 개복으로 인한 불필요한 출혈의 방지 및 수술시간의 단축, 수술후 유착감소 및 반복수술의 용이성, 미용상의 효과가 좋았다. 특히 비파열성 자궁외 임신에서 골반경을 이용한 난관개구술과 MTX 국소투여법 같은 보존적 치료는 매우 효과적이었다. 그리고 난관파열이 되어 어느정도 복강내출혈이 있는 파열성 자궁외 임신에서도 골반경수술의 장점을 살리면서 시술을 할 수 있을 것으로 생각된다. Prevalence of extrauterine pregnancy has increased. With the availability of the rapid quantitative B human chorionic gonadotropin titers and more accurate sonograms, the diagnosis of probable extrauterine pregnancy is being made earlier and often before tubal rupture. Salpingectomy at the time of laparotomy has been the standard treatment for tubal pregnancy, even when the tube was not ruptured. Recently conservative surgery via salpingotomy/salpingostomy or fimbrial expression has been advocated. The pelviscopy is an essential tool in making the diagnosis and, given certain criteria, can be useful for management as well. Pelviscopic management of extrauterine pregnancy has been described extensively in last several years. These methods have been associated with low morbidity, early recovery, and short hospital stay. Although the role of medical therapy for extrauterine pregnancy is still uncertain, medical therapy of early, unruptured extrauterine pregnancy can be safe and cost effective and even result in improved fertility, compared with the standard surgical therapy. Conservative treatment of unruptured type tubal pregnancy, which have been diagnosed early, salpingotomy and salpingostomy and MTX local injection are highly effective. We have experienced 80 cases of pelviscopic surgery in 79 patients with extrauterine pregnancy. Among the procedures, salpingectomy was peformed most frequently(78.5%). Salpingotomy was also performed(12.5%), salpingectomy was performed(1.3%), pelviscopy guided MTX local injection was performed(1.3%), and fimbrial expression was performed(1.3%). Of 79 patients, complication occurred in 7 patients. In one patient with liner salpingotomy, additional pelviscopic salpingectomy was needed for bleeding control from previous salpingotomy sites. Hospital stay was averaged 3.8 days. Pelviscopic treatment of extrauterine pregnancy was simple and effective with fast recovery even in patients with pelvic adhesions due to prior operations, ruptured extrauterine pregnancies with moderate intraperitoneal free blood.